LED Flood Light Tunnel Light AC85-265,led lighting,led outdoor lighting ,LED Flood .Flood light led ,led flood lights ,outdoor spotlights ,led garden lights
Color rendering index
Led junction temperature
Led working life-span
Net weight / Gross weight
1. Complied with: CE & RoHS
2.Best led chips: Bridgelux and Epistar
3. Research and develop by ourselves with good material.
4.Hole cutting size can be according your requirement
5.Brightness and low Lumens depreciation
Payment and Service
1. Payment: T/T in advance, Western Union are welcomed.
2. OEM&ODM, any your customized lightings we can help you to design and put into product.
3. Delivered in 7-15 days
4. Warranty: 3 years
It can be widely used for outdoor of hotel, restaurant, commercial & home lighting industrial etc
- Q:1000 square meters low voltage.36 volts lighting power supply with multiple transformers and wires
- First of all, make sure your power is too large, but you are not recommended to do so, the cost is too high, the pressure drop is too large, you can raise the voltage to 220V or higher, and then transfer to avoid power losses. If the direct transmission, the power is slightly larger, the line will be very rough, the cost will be very high
- Q:Who knows how big transformers and lines the 36V transformer uses in lighting?
- Depending on your load capacity, primary voltage, site reservation, etc.. For example, 3.6KW lighting, with 4KVA transformers, the primary side 380V with 2.5 square (copper wire) enough, two times the side of 25 square.
- Q:Why should lighting transformers be used in factories and mines?
- In some factories and mines (such as power plants), in order to supply power reliability, the power system is grounded in a three-phase, ungrounded, or neutral manner. In this way, the transformer must be connected to a neutral grounding type with a special transformer to supply power to the lighting.
- Q:What transformer can be used in a safety voltage lighting transformer?
- 220V/36V or 24V isolation transformer. Double winding, high and low voltage coils, not connected.
- Q:How many A leakage protection switches are used in 5000VA lighting transformers?
- According to the working principle of the protector, it can be divided into three kinds: voltage type, current type and pulse type. The voltage protection device is connected to the transformer neutral point and the ground, when the electric shock when the neutral point voltage offset to the real estate, in order to make the action to protect the power off, but because it is the protection of the transformer low voltage network, cannot be classified protection, so the power range is large, frequent moves, so has been eliminated. The pulse current protector is a sudden change in the phase and amplitude of the three-phase unbalanced leakage current when an electric shock occurs, which is used as an action signal, but also a dead time. The current type current leakage protector is widely used, so the protector of current type is mainly introduced below.
- Q:Why can't autotransformer be used as transformer for safety lighting?
- The main and auxiliary coils of the autotransformer have common parts. Once the short-circuit is made, the lighting circuit is directly connected with the high voltage circuit, which is very dangerous
- Q:How to calculate the rated capacity of small transformers for lighting purposes?
- Capacity of power transformer is the basic equipment for a total capacity of [kW] (maximum power consumption rate by a / X100 capacity) divided by the power load [%] value for benchmarking.
- Q:Please tell me how to calculate the transformer in the lighting circuit of elevator shaft in building electrical design
- Pe=19.5KW, installed capacityKx=1 coefficient of demandPjs=KxPe=19.5KW, calculated loadCOS, phi, =0.85, power factorIjs=KxPe/3/220/cos phi (Ijs calculates current, voltage, 380V/220V, three-phase)=1*19.5*1000/3/220/0.85=34.76A
- Q:Power and lighting transformers, lighting quality will be affected much?
- The quality of transformer itself, coupling coefficient, overload capacity, as well as the impact current of the bulb, the cold resistance of the filament and the starting factor at the same time, it is better to choose the 400VA transformer.
- Q:What type of low voltage transformer should be adopted for safety lighting power supply?
- Isolated transformer, once 380V or 220V, two voltage, 36V, 24V, 12V, several categories, do not allow the use of autotransformer.
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